In supersymmetry, a gluino (symbol g͂) is the hypothetical supersymmetric partner of a gluon. In supersymmetric theories, gluinos are Majorana fermions and interact via the strong force as a color octet. Gluinos have a lepton number 0, baryon number 0, and spin 1/2.
Experimentally, gluinos have been one of the most promising SUSY particle candidates to be discovered since the production cross-section is the highest among SUSYs in the energy-frontier hadron colliders such as Tevatron and the Large Hadron Collider (LHC). The experimental signatures are typically a pair-produced gluinos and their cascade decays. In models of supersymmetry that conserve R-parity, gluinos eventually decay into the undetected lightest super-symmetric particle with many quarks (looking as jets) and the standard model gauge bosons or Higgs bosons. In the R-parity violating scenarios, gluinos can either decay promptly into multiple jets, or be long-lived leaving anomalous sign of "displaced decay vertices" from the interaction point where they are generated.
- As there are eight gluons of different color combinations, there are eight gluinos of different color combinations, too.
- Lincoln, Don (2013-07-03). "Supersymmetric glue: the search for gluinos". cms.web.cern.ch. http://cms.web.cern.ch/news/supersymmetric-glue-search-gluinos.
- "SupersymmetryPublicResults < AtlasPublic < TWiki". https://twiki.cern.ch/twiki/bin/view/AtlasPublic/SupersymmetryPublicResults.
- "PhysicsResultsSUS < CMSPublic < TWiki". https://twiki.cern.ch/twiki/bin/view/CMSPublic/PhysicsResultsSUS.
Original source: https://en.wikipedia.org/wiki/Gluino. Read more